Improvement in thill-couplings



Roon- & HAGKETT Thin-coupling No. 59,455. Patented'Nov 6, 156s',

UNITED STATES PATENT OEEIGE.

E. O. ROOD AND S. H. HAOKETT, OF LODI, ILLINOIS.

IMPROVEMENT lN THlLL-COUPLINGS.

Specication forming part of Letters Patent No. 59,455, dated November 6, 1866.

To all whom it may concern.-

Be it known that we, E. O. ROOD and S. H. HACKETT, of Lodi, in the county of Kane and State of Illinois, have invented new and useful Improvements in Phill-Couplings; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 represents the elevation of the end of the thill, Fig. 2, the bottom view of the saine; Fig. 3, the elevation of the axle-tree iron; Fig. 4, the top view of the same, land Fig. 5 the elevation of the coupling..

Similar letters of reference in each of the several figures indicate corresponding parts.

The nature of our invention consists in a device for attachin g thills to the axle-trees, so arranged that the connecting-pin of the thill, by means of a spring attached to it, is kept fast in the slot of an iron attached to the axle- -tree, or it can be easily disengaged from said scribe its construction and operation.

The thill-iron A, terminating in two thick disks, B B, forms a fork, and a pin, G, is set fast into and runs through said disks. A lever, D,being set upon the pin C, and having the same for its axis, can freely move around it. It has a shoulder, E, at its end and a spring, F, attached to its front part, said spring being bent around the upper part of the lever and having its other end, f, free.

The iron attached to the axle-tree consists of a plate, G, and two standards, H H. The plate has a slot in a shape oi' T, into which enters lever D and its spring, when couplingV is effected. The standards have slots h h on their top for the purpose of receiving the ends of the pin G.

rI he back side, t, of the T-slot forms an inclined plane for the purpose of forcin g, by means of spring F, the lever D into the narrowest part of the slot.

The operation ot1 the coupling consists in the following: To connect the thill with the axletree, the disks B B are put between the standards of the iron of the axle-tree in such a man` ner as to have the ends of the pin C enter into the slots h h of the standards, andv the lever D, with its spring F, enter into the T-slot of the plate G; then, by pressing said disks downward, the end of the spring F, sliding along the inclined plane t ofthe T-slot, will force the lever C above its shoulder into the narrow partof the slot, and thus effect the connection.

To disconnect the thill from the axle-tree, the shouldered end of the lever D is pressed back toward the spring so much as to force it out of the narrow part of the T-slot into the wide one, thus disengaging it from the s lot, and thereby disconnecting the thill from the axle-tree.

The device may be made of any metal snitable for the purpose, is convenient in use, and exempt from friction and rattling.

What we claim as our invention, and desire to secure by Letters Patent, is-

The combination ot' the shouldered lever D anu its spring F, attached to the thin, with l the T-slot of the axle-tree iron, the whole constructed and operating substantially in the manner herein described and specited, and forming the thill-couplin g.

E. O. ROOD. S, H. HAOKETT.

Witnesses J. B. TURGHIN, -J. M. DOERING. 

